For years, there’s only been one passenger waiting at the Kami-Shirataki train station in the northernmost island of Hokkaido, Japan: A high-school girl, on her way to class. The train stops there only twice a day—once to pick up the girl and again to drop her off after the school day is over.

three years ago ridership at the Kami-Shirataki station had dramatically fallen because of its remote location, and freight service had ended there as well. Japan Railways was getting ready to shut the station down for good—until they noticed that it was still being used every day by the high-schooler. So they decided to keep the station open for her until she graduates. The company’s even adjusted the train’s timetable according to the girl’s schedule. The unnamed girl is expected to graduate this March, which is when the station will finally be closed.